"TinCanMan" <Tin### [at] hotmailcom> wrote in
news:3d3b1328@news.povray.org 

>> Okay, like this the refraction is always well defined. But it is
>> rather unlogical to refract from 1.2 -> 1.0 even though though the
>> ray has never been in space with ior 1.2.
> But can you tell me conclusively what the interior ior of the
> intersection object is, 1.0 or 1.2?  Sort of schrodinger's fridge*.

I suggest to make intersection and later apply interior/material to entire 
object.



-- 
#macro g(U,V)(.4*abs(sin(9*sqrt(pow(x-U,2)+pow(y-V,2))))*pow(1-min(1,(sqrt(
pow(x-U,2)+pow(y-V,2))*.3)),2)+.9)#end#macro p(c)#if(c>1)#local l=mod(c,100
);g(2*div(l,10)-8,2*mod(l,10)-8)*p(div(c,100))#else 1#end#end light_source{
y 2}sphere{z*20 9pigment{function{p(26252423)*p(36455644)*p(66656463)}}}//M

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